Posted November 17, 2008, 5:29 AM.

Residents of the southwestern part of Riverside County were briefly woken early Monday morning to an
earthquake, which measured magnitude 4.1 on the richter scale.

Two quick jolts marked the quake, which occurred at 4:35am.

An aftershock measuring magnitude 3.8 on the richter scale followed at 9:41am.

The epicenter of the earthquake was between Aguanga and Sage, about 15 miles east of Temecula and Murrieta, 12 miles west of Anza and about 20 miles southeast of Hemet. The quake was not on one of the local major fault lines.